Programmable digital electronic lock

In combination with a locker for temporary storage of a user's articles, the locker having a door and a movable latch positioned to secure the door when in latched position and to unlock the door when moved to an unlatched position, an electronic lock for controlling the latch, comprising:

• an inner housing and an outer housing, the inner housing being secured at the inside of the door and the outer housing being secured at a directly opposed position on the outside of the door such that the door is sandwiched between the two housings, with cordless plug-in connector means affixed to the housings for electrically and modularly connecting the inner housing directly to the outer housing, through an opening in the door, the plug-in connector means including opposed sets of electrical contacts, one set fixed to each housing and oriented toward the other set so as to connect together through the opening when the housings are secured to the door,
• electronic access means in the outer housing, for receiving an access code input by a user,
• a solenoid in the inner housing, connected to the latch so as to control the position of the latch,
• microcontroller means connected between the electronic access means and the solenoid, for causing the solenoid to change the position of the latch when a preselected access code is received by the electronic access means, and
• a battery in one of the housings, connected to supply power to the electronic lock.